[INFO] fetching crate front-vec 0.0.8...
[INFO] checking front-vec-0.0.8 against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151
[INFO] extracting crate front-vec 0.0.8 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate front-vec 0.0.8 on toolchain 9bfa31f632912180dc742809bcc51a97f2d7079d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate front-vec 0.0.8
[INFO] finished tweaking crates.io crate front-vec 0.0.8
[INFO] tweaked toml for crates.io crate front-vec 0.0.8 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 23 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert2 v0.3.15
[INFO] [stderr]   Downloaded assert2-macros v0.3.15
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1dac3e288b8ed505d7fc0ccb572e621c1a026882617d57b6132ee5695117d817
[INFO] running `Command { std: "docker" "start" "-a" "1dac3e288b8ed505d7fc0ccb572e621c1a026882617d57b6132ee5695117d817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1dac3e288b8ed505d7fc0ccb572e621c1a026882617d57b6132ee5695117d817", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1dac3e288b8ed505d7fc0ccb572e621c1a026882617d57b6132ee5695117d817", kill_on_drop: false }`
[INFO] [stdout] 1dac3e288b8ed505d7fc0ccb572e621c1a026882617d57b6132ee5695117d817
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14bb269eb0f7358f90bfc815ad301f6216df1be537f19cb7f3dbd7e5f73c6027
[INFO] running `Command { std: "docker" "start" "-a" "14bb269eb0f7358f90bfc815ad301f6216df1be537f19cb7f3dbd7e5f73c6027", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.26
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking yansi v1.0.1
[INFO] [stderr]     Checking front-vec v0.0.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking is-terminal v0.4.16
[INFO] [stdout] warning: the feature `ptr_internals` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(ptr_internals, maybe_uninit_slice)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::mem::MaybeUninit::<T>::slice_assume_init_ref`: replaced by inherent assume_init_ref method; will eventually be removed
[INFO] [stdout]    --> src/front_vec/front_vec.rs:305:31
[INFO] [stdout]     |
[INFO] [stdout] 305 |         unsafe { MaybeUninit::slice_assume_init_ref(slice) }
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling assert2-macros v0.3.15
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.100
[INFO] [stderr]     Checking assert2 v0.3.15
[INFO] [stdout] warning: the feature `ptr_internals` is internal to the compiler or standard library
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(ptr_internals, maybe_uninit_slice)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: using it is strongly discouraged
[INFO] [stdout]   = note: `#[warn(internal_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::mem::MaybeUninit::<T>::slice_assume_init_ref`: replaced by inherent assume_init_ref method; will eventually be removed
[INFO] [stdout]    --> src/front_vec/front_vec.rs:305:31
[INFO] [stdout]     |
[INFO] [stdout] 305 |         unsafe { MaybeUninit::slice_assume_init_ref(slice) }
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.87s
[INFO] running `Command { std: "docker" "inspect" "14bb269eb0f7358f90bfc815ad301f6216df1be537f19cb7f3dbd7e5f73c6027", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14bb269eb0f7358f90bfc815ad301f6216df1be537f19cb7f3dbd7e5f73c6027", kill_on_drop: false }`
[INFO] [stdout] 14bb269eb0f7358f90bfc815ad301f6216df1be537f19cb7f3dbd7e5f73c6027